| Clue | Source | Date |
|---|---|---|
| Period of heat in female mammals | The Times Specialist Sunday | 02 Jun 2024 |
| Period of heat in female animals | The Times Specialist Sunday | 05 Jul 2020 |
| Our Tess suffers in heat | ||
| Heat in female mammals | The Telegraph General Knowledge | 28 May 2017 |
| Love is abroad (is sexually active in fertility period) | ||
| A gadfly. |